The Free Stack Guide — run your SaaS for $0/mo

By Syed Muhammad Akbar Gillani·Last verified: July 2026·GitHub

The short answer

You can run a production SaaS for **$0/month** using free tiers from Neon, Vercel, Resend, and Supabase. A developer shared on Reddit that they crossed $13k/month in revenue with a tooling bill near zero — their exact stack is documented in this guide.

The free stack

When each tier breaks

0–100 users: Everything free

Your tooling bill is literally $0. The only cost is your domain (~$10/year).

100–1,000 users: Some upgrades

1,000–10,000 users: Full stack

The key insight

Revenue should outgrow your tooling costs. By the time your free tiers break, your revenue should be covering them comfortably. If your costs are growing faster than your revenue, the problem isn't your tooling — it's your pricing or your market.

About the author

Syed Muhammad Akbar Gillani is a full-stack developer and the founder of CheapStack and Mag Studios. He builds affordable developer tools and writes about bootstrapping products on realistic budgets. All pricing data in this guide was verified from public pricing pages and personal usage in July 2026.